KR20130059210A - Pillow ball bush for vehicle and assembly method thereof - Google Patents

Pillow ball bush for vehicle and assembly method thereof Download PDF

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Publication number
KR20130059210A
KR20130059210A KR1020110125410A KR20110125410A KR20130059210A KR 20130059210 A KR20130059210 A KR 20130059210A KR 1020110125410 A KR1020110125410 A KR 1020110125410A KR 20110125410 A KR20110125410 A KR 20110125410A KR 20130059210 A KR20130059210 A KR 20130059210A
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KR
South Korea
Prior art keywords
bearing
inner pipe
pipe
ball bush
sealing member
Prior art date
Application number
KR1020110125410A
Other languages
Korean (ko)
Inventor
이영춘
권태성
이성근
김현우
김철순
권익진
Original Assignee
주식회사 일진
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Publication date
Application filed by 주식회사 일진 filed Critical 주식회사 일진
Priority to KR1020110125410A priority Critical patent/KR20130059210A/en
Publication of KR20130059210A publication Critical patent/KR20130059210A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G7/00—Pivoted suspension arms; Accessories thereof
    • B60G7/04—Buffer means for limiting movement of arms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
    • B60G2204/41—Elastic mounts, e.g. bushings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
    • B60G2204/416—Ball or spherical joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
    • B60G2204/418—Bearings, e.g. ball or roller bearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/012—Hollow or tubular elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/70—Materials used in suspensions
    • B60G2206/73—Rubber; Elastomers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/80—Manufacturing procedures
    • B60G2206/81—Shaping
    • B60G2206/8101—Shaping by casting
    • B60G2206/81012—Shaping by casting by injection moulding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/90—Maintenance
    • B60G2206/91—Assembly procedures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2326/00—Articles relating to transporting
    • F16C2326/01—Parts of vehicles in general
    • F16C2326/05—Vehicle suspensions, e.g. bearings, pivots or connecting rods used therein
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72—Sealings

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pivots And Pivotal Connections (AREA)

Abstract

PURPOSE: A pillow ball bush for a vehicle and an assembly method thereof are provided to reduce the number of components and simplify the assembly process. CONSTITUTION: A pillow ball bush(10) for a vehicle and an assembly method thereof comprises an inner pipe(20), a bearing(30), an outer pipe(50), a shock absorption member(40), a sealing member(60), and a fixing ring(70). The inner pipe is formed in a hollow pipe shape as a rotary shaft of the pillow ball bush and comprises a ball stud(25) on the outer circumference. The bearing wraps the outer circumference of the inner pipe and the ball stud. The outer pipe is formed as a hollow pipe shape. The shock absorption member is arranged between the outer pipe and the bearing and releases the loads applied to the pillow ball brush. The sealing member is included on both ends of the bearing in an axial direction of the inner pipe and covers a gap between the inner pipe and the bearing in order not to be exposed to the outside. The fixing ring is included inside the sealing member and fixes the sealing member to the bearing.

Description

Pillow ball bush for automobile and assembly method thereof {PILLOW BALL BUSH FOR VEHICLE AND ASSEMBLY METHOD THEREOF}

The present invention relates to a pillow ball bush for automobiles and a method for assembling thereof, and more particularly, to a pillow ball bush for automobiles and a method for assembling thereof.

In general, a pillow ball bush is a joint installed at one side of an arm and a link constituting a suspension or steering to connect a subframe of a vehicle. .

Suspension of a vehicle is a device that is disposed between the axle and the vehicle body to prevent the vibration or shock received from the road surface to be transmitted directly to the vehicle body to prevent damage to the vehicle body and improve the ride comfort. In addition, vehicle suspensions are largely classified into front suspensions and rear suspensions.

As an example of the front suspension, in the case of the Macpherson strut type suspension, a lower point is fixed to the subframe by means of a bush joint at the lower end of the knuckle that is coupled to the left and right wheels. A strut assembly that is coupled to the upper end of the arm and the knuckle and includes a shock absorber and a coil spring to alleviate the impact on the road surface and improve the ride comfort, and a rolling phenomenon generated in the vehicle body during driving. It is composed of a stabilizer (stabilizer) and the like to reduce the driving stability. In addition, a bush is generally used at the fastening portion between the components of the suspension system and the subframe of the vehicle body to insulate the impact in the front-rear direction while absorbing the axial displacement during driving, thereby improving the riding comfort and controllability.

Bushes of various structures are used for this function. The double pillow ball bush has no lateral play, and thus has a high lateral stiffness and improves steering performance, while there is no axial play, so there is no axial impact load. As a result, ride comfort may deteriorate and noise may be generated.

On the other hand, the pillow ball bush according to the prior art is provided with a hollow inner pipe as a rotation axis, the inner pipe is formed with a ball stud on the outer peripheral surface. In addition, the bearing is provided surrounding the outer circumferential surface and the ball stud of the inner pipe, the bearing case is provided to surround the outer circumferential surface of the bearing. Further, the inner pipe, the bearing and the bearing case may be disposed inside the hollow outer pipe, and a buffer member may be disposed between the bearing case and the outer pipe. In addition, dust covers are provided at both ends of the pillow ball bush to prevent foreign matter from entering.

As such, pillow ball bushes have been developed in which various components are applied to solve the problem of the pillow ball bush and to increase the reliability of the product. However, if more parts are applied to the pillow ball bush, the cost can be increased and the assembly process can be complicated.

Accordingly, the present invention has been made to solve the above problems, and an object of the present invention is to provide a pillow ball bush for automobiles and a method of assembling which can reduce the number of parts to be applied and simplify the assembly process. .

According to an embodiment of the present invention, a pillow ball bush for a vehicle includes: an inner pipe formed in a hollow pipe shape as a rotation axis of the pillow ball bush; A ball stud formed on an outer circumferential surface of the inner pipe; A bearing rotatably surrounding an outer circumferential surface of the inner pipe on which the ball stud is formed; An outer pipe formed in a hollow pipe shape to include the inner pipe and the bearing therein; A buffer member disposed between the outer pipe and the bearing to relieve the load of the pillow ball bush; A sealing member provided at both ends of the bearing in an axial direction of the inner pipe to cover a gap in which the inner pipe and the bearing overlap each other so as not to be exposed to the outside; And a fixing ring formed to fix the sealing member. . ≪ / RTI >

The buffer member may be formed of a rubber material.

The sealing member may be formed of a rubber material.

The fixing ring may be pressed in the axial direction to fix the sealing member to the bearing.

The bearing may be formed of a plastic material.

The bearing includes a first bearing and a second bearing, one of the first bearing and the second bearing is formed with a protrusion protruding from an engagement surface of the first bearing and the second bearing, and among the first and second bearings. The other engaging surface may be provided with a receiving portion for receiving the protrusion.

At both ends of the bearing in which the first bearing and the second bearing are coupled to each other, a stepped portion having a smaller outer diameter than the outer diameter of the neighboring bearing may be formed so that the sealing member can be easily coupled.

The outer circumferential surface of the inner pipe may be solid coated, and the bearing may be injection molded on the outer circumferential surface of the inner pipe.

In addition, the method for assembling a pillow ball bush for automobiles according to an embodiment of the present invention, the bearing including an inner pipe, the first bearing and the second bearing which is a rotation axis of the pillow ball bush and the inner pipe and the outside of the bearing A pillow ball bush for automobiles having concentric outer pipes arranged sequentially in a radial direction, including a cushioning member filled between the bearing and the outer pipe, and a sealing member to prevent foreign matter from penetrating or leaking lubricant. The method of claim 1, further comprising: coupling the first bearing to an outer circumferential surface of the inner pipe; Coupling the second bearing to an outer circumferential surface of the inner pipe; Bonding the cushioning member to an outer circumferential surface of the bearing when the inner pipe and the bearing are coupled to each other; Inserting the assembly of the inner pipe, the bearing and the cushioning member into the outer pipe; When the assembly and the outer pipe are coupled to each other, pressing the sealing member toward the center at both ends of the inner pipe in an axial direction; And pressing the fixing ring provided in the pressurized sealing member in the axial direction. . ≪ / RTI >

The first bearing and the second bearing may be fitted in the central direction at both ends of the axial direction of the inner pipe, respectively.

Adhesive may be used on the contact surface of the buffer member and the bearing and the contact surface of the buffer member and the outer pipe, respectively.

Furthermore, the method for assembling a pillow ball bush for an automobile according to another embodiment of the present invention may include an inner pipe serving as a rotation axis of the pillow ball bush, a bearing surrounding the inner pipe, and an outer pipe surrounding the inner pipe and the outside of the bearing. A pillow ball bush for automobiles having concentric and sequentially arranged radially and including a cushioning member filled between the bearing and the outer pipe and a sealing member to prevent foreign matter from penetrating or leaking lubricant. Solid coating the outer circumferential surface of the inner pipe; Injection molding the bearing on an outer circumferential surface of the inner pipe; Coupling the outer pipe by disposing the outer pipe on an outer circumferential surface of the bearing when the bearing is injection molded, and filling the buffer member in a space separated from the outer pipe; Pressing the sealing member in a central direction at both ends of the inner pipe when the outer pipe is coupled; And pressing the fixing ring provided in the pressurized sealing member in the axial direction. . ≪ / RTI >

As described above, according to the embodiment of the present invention, the number of parts can be reduced by integrating the conventional bearing and the bearing case into one component. Therefore, it is possible to reduce the production cost of the pillow ball bush for automobiles and to simplify the assembly process.

1 is a cross-sectional view of a pillow ball bush for automobiles according to an embodiment of the present invention.
2 to 8 is a view showing a method of assembling a pillow ball bush for an automobile according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a cross-sectional view of a pillow ball bush for automobiles according to an embodiment of the present invention.

As shown in FIG. 1, the pillow ball bush 10 according to the preferred embodiment of the present invention includes an inner pipe 20, a bearing 30, an outer pipe 50, a buffer member 40, and a sealing member 60. It includes.

The inner pipe 20 is formed in a hollow pipe shape as the axis of rotation of the pillow ball bush 10. In addition, a ball stud 25 is formed on the outer circumferential surface of the inner pipe 20. The ball stud 25 may be formed at an axial center portion of the inner pipe 20, and is formed to protrude radially along the outer circumference of the inner pipe 20. Further, the outer surface of the protruding ball stud 25 is formed in a curved curved shape. Meanwhile, the inner pipe 20 may be formed of a metal material.

The bearing 30 is provided surrounding the outer circumferential surface of the inner pipe 20 and the ball stud 25. In addition, the bearing 30 is provided so that the inner pipe 20 therein can be rotated. In addition, the bearing 30 may be formed of a plastic material. Meanwhile, grease may be filled between the outer circumferential surface of the inner pipe 20 and the inner circumferential surface of the bearing 30.

In addition, the bearing 30 may be formed by combining the first bearing 30a and the second bearing 30b. Further, the first bearing 30a and the second bearing 30b are joined by being fitted toward the central portion where the ball studs 25 are formed at both ends of the inner pipe 20 in the axial direction. On the other hand, the fastening of the first bearing 30a and the second bearing 30b can be easily performed by those skilled in the art (hereinafter, those skilled in the art), and a description thereof will be omitted.

Protrusions 32 and receiving portions 34 are formed on the mating surface 36 of the first bearing 30a and the second bearing 30b. In addition, one of the first bearing 30a and the second bearing 30b is formed with a protrusion 32 protruding from the coupling surface 36, the other receiving portion 34 for receiving the protrusion 32 Can be formed. Further, the protrusion 32 is formed in a curved curved shape, and the receiving portion 34 is formed in the same curved shape corresponding to the shape of the protrusion 32. That is, the protrusion 32 is inserted into the receiving portion 34 while the first bearing 30a and the second bearing 30b are coupled to each other. Therefore, grease filled between the inner circumferential surface of the bearing 30 and the outer circumferential surface of the inner pipe 20 can be prevented from leaking to the outside of the bearing 30 through the engaging surface 36. In addition, foreign matters outside the bearing 30 may be prevented from penetrating through the coupling surface 36. On the other hand, the shape of the protrusion 32 and the receiving portion 34 can be variously changed and applied by those skilled in the art.

The outer pipe 50 is formed in a hollow pipe shape. In addition, the inner circumferential surface of the outer pipe 50 is disposed to be spaced apart from the outer circumferential surface of the bearing 30 by a predetermined distance. Further, the outer pipe 50, the inner pipe 20 and the bearing 30 are concentrically arranged in a hollow cylindrical shape. On the other hand, the outer pipe 50 may be formed of a metal material.

The buffer member 40 is disposed between the spaced outer pipe 50 and the bearing 30 to relieve the load applied to the pillow ball bush 10. In addition, the buffer member 40 may be formed of a rubber material. Therefore, corrosion may occur when the buffer member 40 comes into contact with grease or the like. That is, corrosion of the shock absorbing member 40 may be prevented by the protruding portion 32 and the receiving portion 34 which prevent the leakage of grease. Furthermore, the shock absorbing member 40 is formed of a rubber material, so that the axial displacement of the bearing 30 and the inner pipe 20 may be provided. On the other hand, the buffer member 40 may be bonded to the outer pipe 50 and the bearing 30 by an adhesive.

The sealing member 60 is provided at both ends of the bearing 30 in the axial direction of the inner pipe 20. In addition, the sealing member 60 is formed in a circular ring (ring) shape. That is, the sealing member 60 is provided in a shape that covers the gap so that the inner pipe 20 and the bearing 30 overlap each other so as not to be exposed to the outside. Therefore, foreign matters can be prevented from entering through the gap where the inner pipe 20 and the bearing 30 overlap. In addition, grease filled between the outer circumferential surface of the inner pipe 20 and the inner circumferential surface of the bearing 30 can be prevented from leaking to the outside. Further, the sealing member 60 may be formed of a rubber material.

Stepped portions 38 are formed at both ends of the bearing 30 in the axial direction. The step portion 38 refers to a portion formed with an outer diameter relatively smaller than the outer diameter of the neighboring bearing 30 so that the sealing member 60 can be easily coupled. That is, the sealing member 60 is coupled to the stepped portion 38 by fitting.

An inner pipe contact surface 62 is formed at a surface where the sealing member 60 contacts the inner pipe 20. In addition, the inner pipe contact surface 62 may be formed in a shape in which peaks and valleys are repeated. In addition, a sealing member contact surface 22 having a peak and a valley having a shape corresponding to the inner pipe contact surface 62 may be formed on an outer circumferential surface of the inner pipe 20 that contacts the inner pipe contact surface 62. Therefore, separation of the sealing member 60 can be prevented.

A fixing ring 70 may be provided inside the sealing member 60 to fix the sealing member 60 coupled to the step portion 38 to the bearing. In addition, the insufficient pressure input of the sealing member 60 formed of a rubber material by the fixing ring 70 can be supplemented. Furthermore, the fixing ring 70 may be formed in a ring shape having a cross section bent in the radial direction. On the other hand, the fixing ring 70 may be formed of a metal material. The fixing ring 70 presses the sealing member 60 in the axial direction at the stepped portion 38 to strengthen the coupling force between the sealing member 60 and the bearing 30.

8 may be a cross-sectional view of a pillow ball bush for a vehicle according to another embodiment of the present invention. 8 shows a bearing 30 integrally formed by injection molding.

According to another embodiment of the present invention, a solid coating may be applied to the outer circumferential surface of the inner pipe 20. In addition, the bearing 30 is injection molded on the outer circumferential surface of the inner pipe 20. In addition, the bearing forming method can maintain the performance of the pillow ball bush 10 even if the bearing case according to the prior art is not applied. Furthermore, the bearing forming method is relatively simple compared to the coupling of the bearing case according to the prior art.

2 to 8 is a view showing a method of assembling a pillow ball bush for an automobile according to an embodiment of the present invention.

When the inner pipe 20 is prepared, the first bearing 30a is engaged. In addition, the first bearing 30a is fitted in the center direction in which the ball stud 25 is formed at one end of both ends of the axial direction of the inner pipe 20 and is coupled thereto. Furthermore, the first bearing 30a includes a receiving portion 34 (see FIGS. 2 and 3).

When the first bearing 30a is coupled to the inner pipe 20, the second bearing 30b is coupled. In addition, the second bearing 30b is fitted in the central direction where the ball stud 25 is formed at the other end of both ends of the axial direction of the inner pipe 20 and is coupled thereto. Furthermore, the second bearing 30b includes a protrusion 32. As described above, the protrusion 32 is inserted into the receiving portion 34 while the first bearing 30a and the second bearing 30b are coupled (see FIG. 4).

According to another embodiment of the present invention, in the coupling of the inner pipe 20 and the bearing 30, a solid coating is performed on the outer peripheral surface of the inner pipe 20. In addition, when the solid coating is completed, the bearing 30 is injection molded on the outer peripheral surface of the inner pipe 20 (see Fig. 5).

When the coupling of the inner pipe 20 and the bearing 30 is completed, the buffer member 40 is attached to the outer circumferential surface of the bearing 30 using an adhesive (see FIG. 6).

When the adhesion of the shock absorbing member 40 is completed, the assembly of the inner pipe 20, the bearing 30, and the shock absorbing member 40 is inserted into the outer pipe 50. In addition, the buffer member 40 is formed to be fitted to the inner peripheral surface of the outer pipe 50 without play. Furthermore, an adhesive may be used in a portion where the buffer member 40 contacts the inner circumferential surface of the outer pipe 50 (see FIG. 7).

According to another embodiment of the present invention, the outer pipe 50 is disposed so as to be spaced apart from the outer circumferential surface of the bearing 30. In addition, the outer pipe 50 may be coupled by filling the buffer member 40 in a space in which the outer pipe 50 and the bearing 30 are spaced apart (see FIG. 7).

When the outer pipe 50 is coupled, the sealing member 60 is coupled. In addition, the sealing member 60 is press-fit in the central direction at both ends of the axial direction of the inner pipe 20. Furthermore, when the pressing of the sealing member 60 is completed, the fixing ring 70 is pressed in the axial direction to strengthen the fixing force of the sealing member 60 (see FIG. 8).

As described above, according to the exemplary embodiment of the present invention, the bearing 30 may be formed to integrate the conventional bearing and the bearing case into one component, thereby reducing the number of parts. In addition, since the conventional bearing and the bearing case are fixedly connected, the sealing member 60 may be fixed to the bearing 30. Furthermore, since the sealing member 60 is formed of a rubber material, it is possible to have a configuration of the pillow ball bush 10 without impairing the functions of the inner pipe 20 and the bearing 30 rotatably connected.

Therefore, the production cost of the pillow ball bush 10 for automobiles can be reduced by reducing the number of parts. In addition, the assembly process of the bearing and the bearing case is eliminated, thereby simplifying the assembly process.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, And all changes to the scope that are deemed to be valid.

10: pillow ball bush 20: inner pipe
22: sealing member contact surface 25: ball stud
30: bearing 30a: first bearing
30b: second bearing 32: protrusion
34: receiving portion 36: mating surface
38: stepped portion 40: buffer member
50: outer pipe 60: sealing member
62: inner pipe contact surface 70: retaining ring

Claims (12)

An inner pipe formed in a hollow pipe shape as a rotation axis of the pillow ball bush;
A ball stud formed on an outer circumferential surface of the inner pipe;
A bearing rotatably surrounding an outer circumferential surface of the inner pipe on which the ball stud is formed;
An outer pipe formed in a hollow pipe shape to include the inner pipe and the bearing therein;
A buffer member disposed between the outer pipe and the bearing to relieve the load of the pillow ball bush;
A sealing member provided at both ends of the bearing in an axial direction of the inner pipe to cover a gap in which the inner pipe and the bearing overlap each other so as not to be exposed to the outside; And
A fixing ring formed to fix the sealing member;
Car pillow ball bush comprising a. The method of claim 1,
The cushion member is a pillow ball bush for automobiles, characterized in that formed of a rubber material. The method of claim 1,
The sealing member is a pillow ball bush for automobiles, characterized in that formed of a rubber material. The method of claim 1,
The fixing ring is a pillow ball bush for automobiles, characterized in that for fixing the sealing member to the bearing by being pressed in the axial direction. The method of claim 1,
The bearing ball bush for automobiles, characterized in that the bearing is formed of a plastic material. The method of claim 1,
The bearing includes a first bearing and a second bearing,
One of the first bearing and the second bearing is provided with a protrusion protruding from the coupling surface of the first bearing and the second bearing,
The pillow ball bush for automobiles, characterized in that the receiving portion for receiving the protrusion is formed on the other engagement surface of the first bearing and the second bearing. The method according to claim 6,
At both ends of the bearing in which the first bearing and the second bearing are coupled to each other, a stepped portion having a smaller outer diameter than the outer diameter of the neighboring bearing is formed so that the sealing member can be easily coupled. Pillow ball bush for automobiles. The method of claim 1,
The outer circumferential surface of the inner pipe is solid coated,
The bearing ball bush for automobiles, characterized in that the injection molding on the outer peripheral surface of the inner pipe. An inner pipe, a bearing including a first bearing and a second bearing, and an outer pipe surrounding the inner pipe and the outside of the bearing are concentric and sequentially arranged radially, and the bearing and the bearing In the pillow ball bush for automobiles including a cushioning member to be filled between the outer pipe and a sealing member to prevent foreign matter from penetrating or outflow of lubricating oil,
Coupling the first bearing to an outer circumferential surface of the inner pipe;
Coupling the second bearing to an outer circumferential surface of the inner pipe;
Bonding the cushioning member to an outer circumferential surface of the bearing when the inner pipe and the bearing are coupled to each other;
Inserting the assembly of the inner pipe, the bearing and the cushioning member into the outer pipe;
When the assembly and the outer pipe are coupled to each other, pressing the sealing member toward the center at both ends of the inner pipe in an axial direction; And
Pressing the fixing ring provided in the pressurized sealing member in the axial direction;
Assembly method of the pillow ball bush for a vehicle comprising a. 10. The method of claim 9,
And the first bearing and the second bearing are fitted in the center direction at both ends of the inner pipe in the axial direction and are coupled to each other. 10. The method of claim 9,
And an adhesive is used for the contact surface of the buffer member and the bearing and the contact surface of the buffer member and the outer pipe, respectively. An inner pipe which is a rotation axis of the pillow ball bush, a bearing surrounding the inner pipe, and an inner pipe surrounding the inner pipe and the outside of the bearing are concentric and sequentially arranged in a radial direction, between the bearing and the outer pipe. In a pillow ball bush for automobiles including a cushioning member to be filled and a sealing member for preventing foreign matter from penetrating or outflow of lubricating oil,
Solid coating an outer circumferential surface of the inner pipe;
Injection molding the bearing on an outer circumferential surface of the inner pipe;
Coupling the outer pipe by disposing the outer pipe on an outer circumferential surface of the bearing when the bearing is injection molded, and filling the buffer member in a space separated from the outer pipe;
Pressing the sealing member in a central direction at both ends of the inner pipe when the outer pipe is coupled; And
Pressing the fixing ring provided in the pressurized sealing member in the axial direction;
Assembly method of the pillow ball bush for a vehicle comprising a.
KR1020110125410A 2011-11-28 2011-11-28 Pillow ball bush for vehicle and assembly method thereof KR20130059210A (en)

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KR20170068325A (en) * 2015-12-09 2017-06-19 현대자동차주식회사 Pillow ball joint assembly
KR20170123360A (en) * 2016-04-28 2017-11-08 주식회사 일진 Stabilizer bar mount bush apparatus
CN109340247A (en) * 2018-11-07 2019-02-15 博戈橡胶塑料（株洲）有限公司 A kind of elasticity flexural pivot compound mandrel of projection type
CN109340248A (en) * 2018-11-07 2019-02-15 博戈橡胶塑料（株洲）有限公司 A kind of elastic flexural pivot with compound projection mandrel
CN109555780A (en) * 2018-11-07 2019-04-02 博戈橡胶塑料（株洲）有限公司 A kind of production method of elasticity flexural pivot projection core barrel
CN109578429A (en) * 2018-11-07 2019-04-05 博戈橡胶塑料（株洲）有限公司 A kind of elastic flexural pivot can be rotated compound mandrel
WO2020004947A1 (en) * 2018-06-26 2020-01-02 주식회사 일진 Bush assembly, suspension arm comprising same and suspension arm manufacturing method
WO2020111795A1 (en) * 2018-11-27 2020-06-04 주식회사 일진 Ball joint, suspension apparatus comprising same, and method for manufacturing ball joint

Cited By (11)

* Cited by examiner, † Cited by third party
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KR20170065378A (en) * 2015-12-03 2017-06-13 현대자동차주식회사 Pillow ball joint assembly
KR20170068325A (en) * 2015-12-09 2017-06-19 현대자동차주식회사 Pillow ball joint assembly
KR20170123360A (en) * 2016-04-28 2017-11-08 주식회사 일진 Stabilizer bar mount bush apparatus
WO2020004947A1 (en) * 2018-06-26 2020-01-02 주식회사 일진 Bush assembly, suspension arm comprising same and suspension arm manufacturing method
KR20200001065A (en) * 2018-06-26 2020-01-06 주식회사 일진 Bush assembly, suspension arm comprising the same, and method of manufacturing the suspension arm
CN109340247A (en) * 2018-11-07 2019-02-15 博戈橡胶塑料（株洲）有限公司 A kind of elasticity flexural pivot compound mandrel of projection type
CN109340248A (en) * 2018-11-07 2019-02-15 博戈橡胶塑料（株洲）有限公司 A kind of elastic flexural pivot with compound projection mandrel
CN109555780A (en) * 2018-11-07 2019-04-02 博戈橡胶塑料（株洲）有限公司 A kind of production method of elasticity flexural pivot projection core barrel
CN109578429A (en) * 2018-11-07 2019-04-05 博戈橡胶塑料（株洲）有限公司 A kind of elastic flexural pivot can be rotated compound mandrel
CN109578429B (en) * 2018-11-07 2021-09-28 博戈橡胶塑料（株洲）有限公司 Elastic spherical hinge capable of rotating composite mandrel
WO2020111795A1 (en) * 2018-11-27 2020-06-04 주식회사 일진 Ball joint, suspension apparatus comprising same, and method for manufacturing ball joint

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